Duncan, 4th Earl of Mar was the son of MorgundMac Gylocher, 2nd Earl of Mar and Agnes(?).1 He died after 7 February 1244.1 He succeeded as the 4th Earl of Mar [S., c. 1115] before 29 August 1229.1 In 1237 he was witness to the Anglo-Scottish agreement sealed in the autumn 1237.1

Citations

MorgundMac Gylocher, 2nd Earl of Mar married Agnes(?).2 He died before 30 March 1183.2 He succeeded as the 2nd Earl of Mar [S., c. 1115] after 1133.2 Before 1152 he was witness to a charter of King David I and his son Henry to Dunfermline.2